Subject: Re: portable encrypted CD/USB
To: Thilo Jeremias <>
From: Thilo Jeremias <>
List: netbsd-users
Date: 05/15/2007 22:55:05
> CFS supports 3DES, MacGuffin and Blowfish. I use it since 2001, first
> for ~stefan, but since CGD is available I only encrypt some
> directories (~/mail, ~/.gnupg and so) which shall be protected even if
> CGD is configured and mounted. 
Hm, ?

If I understand CFS correctly it hides/scrambles directory names from 
non root users, but it provides no protection against root while the 
directory is open,
why is this then more secure than chmod 600 ?

To MacGuffin: (from wikipedia)
In cryptography, MacGuffin is a block cipher created in 1994 by Bruce 
Schneier and Matt Blaze at a Fast Software Encryption workshop. It was 
intended as a catalyst for analysis of a new cipher structure, known as 
Generalized Unbalanced Feistel Networks (GUFNs)  "MacGuffin" refers to 
a plot device that holds no meaning or purpose of its own except to 
motivate the characters and advance the story. The cryptanalysis 
proceeded very quickly, so quickly that the cipher was broken at the 
same workshop by Vincent Rijmen and Bart Preneel.